Nanofiltration (NF) ndi njira yolekanitsa madzi ya membrane yomwe ili ndi zinthu zambiri zokhala ndi reverse osmosis (RO). Mosiyana ndi RO, yomwe imakana pafupifupi ma solutes onse osungunuka, NF imakana ma ion ambiri monga calcium pamene ikukana ma ion monovalent monga chloride.
Ku HID membraanes timapereka mzere wa nanofiltration (NF) nembanemba zomwe zimapangidwira kuti zipereke kusinthasintha koyenera komanso kukana ndipo zitha kusinthidwa kuti zikwaniritse zosowa zamitundu yosiyanasiyana. Ma nanofiltration nembanemba athu, omwe amapezeka mu ma spiral-bala ndi a flat sheet membrane topology, amatha kukana mchere wambiri ndi ma molekyulu akulu kwinaku akukana kusintha kwa mchere wokhazikika.
Njira yolekanitsa ya nanofiltration imadziwika ndi organic, film composite nembanemba yokhala ndi kukula kwa pore kuyambira 0.1 mpaka 10nm. Ma nembanemba a NF, mosiyana ndi nembanemba ya reverse osmosis (RO), amatha kugwira ntchito pazovuta zotsika ndikulola kukanidwa kokhazikika potengera kukula ndi mtengo wake.
Ma nanofiltration nembanemba athu, okhala ndi kukula kwa pore kuyambira 0.1 mpaka 10nm, amalola madzi ndi mchere wina kudutsa ndikusunga ma ion ambiri, mamolekyu ocheperako, ma carbohydrate, mapuloteni, ndi zinthu zina zachilengedwe. Zogulitsa za HID za NFS, NFX, NFW, ndi NFG nanofiltration membrane zawonetsedwa kuti zimapereka kukana koyipa kwambiri, kusankha kwakukulu, komanso kulimba kwakuthupi komwe kumafunikira kuti agwiritsidwe ntchito pamachitidwe osiyanasiyana olekanitsa mafakitale pakatha zaka za kafukufuku ndi chitukuko.
MgSO4 ndi kukana lactose ndi zabwino mu NFS, NFX, ndi NFW, pamene NFG mbali ina imachotsa monosaccharides kuchokera ku oligosaccharides. Nanofiltration nembanemba amathanso kuchepetsa kuuma, nitrates, sulfates, tannins, turbidity, mtundu, TDS, ndi milingo ya mchere wochepa m'mitsinje yamadzi.
Nanofiltration nembanemba ndi chinthu chatsopano chomwe chimapereka mwayi wosankha bwino ma ion kuposa ma membrane am'mbuyo a osmosis, omwe amakana mitundu yonse ya ma ion mumtsinje wa chakudya. Mbali yapaderayi imalola kusinthasintha kwakukulu pakukula kwa njira zolekanitsa, zomwe zingakhale ndi chikoka chachikulu pa ntchito ndi zachuma, makamaka m'mafakitale. Nazi zitsanzo zochepa za momwe teknoloji yathu ya NF membrane imagwiritsidwira ntchito:
- Lactose ndi whey demineralization mu processing mkaka
- Kuchuluka kwa lactose ndi whey
- Kuchotsa zinthu zachilengedwe m'madzi ndi madzi owonongeka
- Kuchepetsa kuuma kwa madzi kuyeretsa
- Kuchotsa sulphate m'madzi a m'nyanja ndi mankhwala
- Kuchotsa zitsulo zazitsulo m'mafakitale osiyanasiyana
Nthawi yotumiza: Jun-12-2022